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#ifndef _GLIBMM_USTRING_HASH_H
#define _GLIBMM_USTRING_HASH_H
/* Copyright (C) 2023 The glibmm Development Team
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
#include <glibmm/ustring.h>
#include <functional> // For std::hash
/** @page ustringhash File ustring_hash.h
* Specialization of std::hash for Glib::ustring.
*
* Makes it possible to use Glib::ustring as the key in
* std::unordered_map/multimap/set/multiset.
*
* This file is not included by #include <glibmm.h>.
* If you need it, you must add #include <glibmm/ustring_hash.h>.
*
* @newin{2,78}
*/
#ifndef DOXYGEN_SHOULD_SKIP_THIS
namespace std
{
/* Specialization of std::hash for Glib::ustring.
* Makes it possible to use Glib::ustring as the key in
* std::unordered_map/multimap/set/multiset.
* @newin{2,78}
*/
template <>
struct hash<Glib::ustring>
{
size_t operator()(const Glib::ustring& k) const noexcept
{
return std::hash<std::string>{}(k.raw());
}
};
} // namespace std
#endif /* DOXYGEN_SHOULD_SKIP_THIS */
#endif /* _GLIBMM_USTRING_HASH_H */
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